Gasket-setting mechanism.



A. M. SAUNDERS. GASKET SETTING MBGHANISM.

APPLICATION FILED APR.24, 1912.

Patented Augf 27, 1912.

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m. h w S w s I? i3 b s Q Q N1 M l. MHMEI- il@ m2!!-ITIIIIIUUHHNIIE T E 2 E Q di M ,a J Mm W-TNESSES ii i wir AUGUSTUS M. SAUNDERS, 0F MCKEESPORT, PENNSYLVANIA, ASSIGNOR 'IO NATIONAL TUBE COMPANY, OF PITTSBURGH, PENNSYLV.&NIA, A CORPORATION OF NEW JERSEY.

GASKET-SETTING MBECBAMISM.,

Lessors.

ipecication of Letters Patent? Patenten aug. er, raie.

Application filed April 24, 1912. Serial No. 632,934.

To all 'whom t may concern Be it known that I, AUGUSTUS M. Snorinnus, a citizen of the United States, residing at McKeesport, in the county of Allegheny and State of Pennsylvania, have invented a 4pipe joints shown and covered in my Patent No. 853,900 for a pipe joint, granted May 14, 1907, and the invention is designed vfor use in positioning and setting thel gaskots ot such pipe joints in place in providing tight joints between the ends of the pipes or tubes.

Une object oi' my invention is to provide a gasket setting mechanism of improved construction having novel means; whereby the gaskets inserted between the telescoping ends' of the pipes in forming tight joints are easily and quickly forced into position,

Another object of the invention is to provide a portable gasket setting mechanism .l adapted for use on pipes or tubes of' widely varying lengths having improved means whereby the gasket settingmechanisrn is utilized to test the joints as made, to the end that leaks in the joints of the laid piping 4or joints zitterv the completion of the pipe line is avoided and rendered uipieces.- sary. i

In the accompanying drawings illustrating my invention and forming part of. this specification, Figure 1 is a side elevation partly in section showing the'srnall end of a tube telescoped within the bell end of another tube with the gasket setting mechanisin forming my invention in position to force the gasket into tight engagement with the opposing faces of the telescoped pipes. Fig. 2 is 'an enlarged longitudinal section showing my improved gasket settinghmechanisin as positioned in the tubes in t e 'gasket setting operations.

1n the accompanying drawings, 2, desigf nates a pipe or tube having an enlarged or bell end 3 thereon, and 4 is the end of av tube as telescoped within the bell end 3 of the rst pipe in forming a. pipe line. A. rubber gasket 5 of the construction described and claimed in my ltlatent. No. 853,90() is shown in position within the bell end. of the pipe'3'as it is, located in forming a tight joint between the ends of the pipes' 2 and 4.

- Pipe 13.

l17. Y adjacent to the iront head 7 has a trans- Positioped within the pipes 2 and 4 is Ian expanding head formed of the relatively movable sections 6 and 7 and a tubular section 8 which ysurrounds the reduced portions 9 of the sections 6 and 7 and with the flanges 1) on the sections 6 and 7 forms annular grooves in which the rubber gaskets 11 and` 12 are located. ,j v

.The front section 7 et the head'is connected to one end of a pipe 13, which eX- tendsl through the stuiiing box 14 and gland 1,5 1n the rear section 6 thereof and the larger pipe 16 secured by one end in the section (of the head. The pipes 13 and 16 are made of a length greater than that of the longest pipe or tubel 4 which will be used informing a line of piping or tubin having joints constructed as shown in the ravving.

The rear end of the pipe 13 has4 screwthreads extending for some distance oinwardly, a straightthread being used, and on this screw threaded portion of the vpipe 13 o handled nut 17 is mounted, the handles 18 projecting outwardly to provide a convement means for turning the nut 17 on the The rear end of the pipe 16 through which the rear end of the pipe 13 projects engages with oneiace of the nut The front end of the smaller pipe 13 verse opening 19 through its side Walls by which the interior of the pipe 13 is connected with the space between the heads and the tubular section Bof the head. Openings 20 in thesection 8 afford communication between the interior of this space and the bell end of the pipes or tubes 2. j

The rear end of the pipe 13 is connected by means of a quickly detachable pipe joint 2l with the pipe 22 which has a valve23 thereon and which is connected by a flexible connection 24 with the double-acting hand force pump 25. The force pump is provided with an oper-ating lever 26 and with a pressure gage 27, the pump being employed to supply the fluid pressure used in forcing the gasketso into position with the bell ends 3 of the tubes or pipes 2.

ln using jacent tube in apipe line with. the small end of one tube extending within the bell end 3 of the other tube, the gasket z 5 being placed within the bell end 3 preparatory to my improved apparatus, a tube placed in position withl respect to the ad I 30 wardly intol ti ht engagement with the op- .50' the nut 17 on the pipe 13 so as to .move the inserting the telescoped endof the other p1pe being known and being marked upon the rear end of the ipe y16, by bringingv such mark in line with t e end of the pipe 4, the position of the head in the opposite end of the pipe or with respect to the joint in which the gasket is to be set will be lmown. The` nut 17 is then screwed -upon the pipe 13 by means ofthe handles 18 so as to move the sections 6 .and 7 of the head toward each` other. This movement of the head sections expands the asket's 11, 12, so that the outer 20 surfaces of t ese gaskets are forced tightly 1 into engagement with the surrounding surfaces. o the pipes 2 and 4. The hand pump is then operated by means' of the handle 26 to till the space between the head sections 25 6 and 7 and t e bell end of the pipe 2 with" iuid pressure, the pressure gage 27"on the indicating W en the deslred pressurev as een obtained. When the pressure begins to rise, the gasket 5 will be forced forposin faces o the telescoping pipe ends so as to orm a tight joint therebetween. After the desired pressure. has been obtained in 4forming the joint, by allowing the pressure .35 to remain in the head of my improved apparatus for an interval of time,'the absence of leakage will be `indicated by av sustained. pressure on the gage. The`stuiling b'ox lllfand(1 gland 15 in the- 40 section 6 of the head prevent leakage of fluid pressure through the openings in the head 6 for the pipe 13 and by adjusting the head sections 6 and 7 toward' eachother by means of the handled nut 17, the gaskets 11 are expanded to fprm a tight joint between the sections 6 and 7 of the head and the walls of the pi es in which th joint is bein formed. .gfter the gasket 5 has been iirce into position the nut 17 is turned'to back oli` head sections away from each other and perlmit the expanded rubber gaskets 11 to contract. In this way the head is freed from the pipes ortubes 2 and '4, and the-pipe 13 head from the pipe 4; Another lsection of the line of vpiping or tubing being p ut into place, the head 1s inserted. in such section to the head between sal until in the relative osition between the last laid section andadljoining section ofthe f pipe line-shown Vin thedra. `andthe above described operations'are en re at-` ed. .The operations as before "descrl, then repeatedwith successive sectionsV of 66. pipe or tubes. as laid.

.or tube, exp'andin .rings on said .head ar- .ranged to .engage t e walls of the telescoped shoulders, iexible rin i between the shoul- `shouldered head sections, an annular 1 ng\ The advantages of my invention will be apparent to those skilled in the art.

The apparatus is simple and is easily kep in repair.

By making the head of aluminum, an apparatus 'is obtainedv which is light and easily handled in inserting and removing the head from the pipes.

By means' of my improve-d apparatus the gaskets forming the joint between the sections of theypipe line are easily and quickly forced into place and the formation of tight joints is readily indicated by the pressure gage of the force pumpv sothat liability of having leaky joints between sections of the pipe at a distance from the endof the laid pipe line is avoided and rendered'unneces'- sary.

Modifications in the 'construction and arrangement of the parts may be made withg5 out departing from my invention as defined f in the claims.

I claimr- 1. Gasket settingmechanism comprising a head adapted to be inserted within a pipe or tube, expandin rings on said' head arranged to engage t e walls of the telescoped ends of two pipes or tubes, means for expanding said rings into engagement with the walls of the telescoped pipes, and means for supplying fluid pressure to the head between the expanded rings thereon. v

2.,' Gasket. settin mechanism comprising a head adapted to e inserted within a pipe ends of two plpes` or tubes, means forexpandin said rings into engagement with the wal s of the telescoped pipes, and a hand pump connected to said head whereby fluid pressure is supplied tothe head between the expanded rings thereon. 3. Gasket setting mechanism comprising a head made in sections and having expanslble rings on-the ends of said sectlons, said 11o head being adapted to'be inserted within 'a pipe or tube, vmeans for adjusting the head sections to expand' the rings-within the pipes o r tubes'an'd means for su plying fluid pressure to the head between t e expanded rings. 4. Gasket setting mechanismv comprising a head havin shouldered sections',an annular ring on t e head sections between said dersA the ends o A'saidannular ring, 12b means or relatively moving said sections to' 'i .e and the-flexible rings within a pipe 'or uit.

and means for supplying iuid pressure 'l expansible rings.. 5., Gasket. setting mechanism comprlsing between the shoulders on said sections,- ex A pansible rings between the annular ring and theshoulders 'on said head sections, a, pipe e connected to one head section andv forming 1.30

means for supllying Huid pressure to said line, iuid connections to the space between head between tl e expanslble rings, a second said walls, and means for sealing the joints pipe connected to the other head section, and between said walls and the inner walls of.

means engaglng with the ends of said pipes the pipe line, within which the head is seated. 15

l 5 whereby the head sections arev moved to ex- In testimony whereof, I have hereunto set pand and retract saidexpansible rings. l my hand.

6. Gasket setting mechanlsm comprismg Y in combination ,a head havingpdouble walls, AUGUSTUS M' SAUNDERS' said headA being arranged to be positioned N-Witnesses: '.10 within a line of pipe with one wall of the JAS. P. DAVIS,

head on each side of a joint in lsaid pipe CHARLES H. STARR. 

